/Engine/Source/Runtime/UMG/Public/Components/RichTextBlock.h
[URichTextBlockDecorator](API\Runtime\UMG\Components\URichTextBlockDecorator) * GetDecoratorByClass ( [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [URichTextBlockDecorator](API\Runtime\UMG\Components\URichTextBlockDecorator) > DecoratorClass )